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. 2015 Dec 30;17:83–93. doi: 10.1016/j.dcn.2015.12.014

Table 4.

Hierarchical regression testing the relationship between average amount of glasses of alcohol drank per night at the second time point (T2) and testosterone levels and left and right nucleus accumbens (NAcc) activation at the first time point (T1) and second time point (T2) for the left NAcc. Linear regressors of age are indicated by Age1, quadratic regressors of age by Age2 and cubic regressors of age by Age3. Asterisks indicate significant effects. See also Fig. 4.

df F R2Δ B SE β t p
Right NAcc
Step 1 3164 33.5 .38
Constant −0.48 14.89 −0.03 0.98
Age1 0.28 0.76 0.32 0.37 0.72
Age2 0.02 0.07 0.12 0.31 0.76
Age3 0.00 0.00 0.36 0.52 0.60
Step 2 5162 21.2 .02
Constant −3.70 15.35 −0.24 0.81
Age1 0.41 0.78 0.47 0.53 0.60
Age2 0.03 0.07 0.17 0.42 0.68
Age3 0.00 0.00 0.23 0.32 0.75
Testosterone T2 0.15 0.31 0.03 0.47 0.64
Right NAcc win > lose T2 0.14 0.07 0.13 2.01 0.05*
Step 3 7160 16.6 .03
Constant −8.01 15.20 −0.53 0.60
Age1 0.60 0.77 0.68 0.78 0.44
Age2 0.04 0.07 0.26 0.64 0.52
Age3 0.00 0.00 −0.04 −0.06 0.95
Testosterone T2 −0.90 0.50 −0.18 −1.79 0.08
Right NAcc win > lose T2 0.11 0.07 0.10 1.65 0.10
Testosterone T1 1.39 0.52 0.30 2.66 0.01**
Right NAcc win > lose T1 −0.01 0.07 −0.01 −0.20 0.84



Left NAcc
Step 1 3164 33.5 .38
Constant −0.48 14.89 −0.03 0.98
Age1 0.28 0.76 0.32 0.37 0.72
Age2 0.02 0.07 0.12 0.31 0.76
Age3 0.00 0.00 0.36 0.52 0.60
Step 2 5162 20.5 .01
Constant −3.15 15.45 −0.20 0.84
Age1 0.39 0.78 0.45 0.50 0.62
Age2 0.03 0.07 0.17 0.41 0.69
Age3 0.00 0.00 0.25 0.35 0.73
Testosterone T2 0.12 0.32 0.03 0.38 0.70
Left NAcc win > lose T2 0.10 0.08 0.09 1.39 0.17
Step 3 7160 16.2 .03
Constant −7.67 15.27 −0.50 0.62
Age1 0.58 0.77 0.67 0.76 0.45
Age2 0.04 0.07 0.26 0.64 0.53
Age3 0.00 0.00 −0.03 −0.05 0.96
Testosterone T2 −0.97 0.50 −0.20 −1.94 0.06
Left NAcc win > lose T2 0.08 0.08 0.07 1.10 0.27
Testosterone T1 1.45 0.52 0.32 2.77 0.01*
Left NAcc win > lose T1 0.00 0.07 0.00 0.01 0.99